A.winch speed
B.boom strength
C.load radius
D.cable strength
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A.discharging
B.recircling
C.loading
D.taking in
A.Overloading
B.Overstowage
C.Overbooking
D.Overcarriage
A.Regulation of discharge pressure from cargo pumps
B.Maintaining constant velocity in cargo lines
C.Regulation of suction head on cargo pumps
D.To maintain a tank or void at atmospheric pressure
A.Electrical loading
B.Mechanical distribution
C.Compressibility of air
D.Mechanical friction
A.Maximum mooring line tension divided by the anchor's weight in air
B.Anchor's weight in air divided by the maximum mooring line tension
C.Preloading tension divided by the anchor's weight in air
D.Operating tension divided by the anchor's weight in air
最新試題
Which part provides for transverse control and positioning of a boom in a conventional yard and stay system（）.
The net productivity per gang-hour can be improved through a decrease of（）.
Which part of a conventional cargo gear rig provides for vertical control and positioning of a boom（）.
They（）loading at 1400 hours．
When viewed from above，the best position for the guy in relation to the boom is（）.
What is meant by the term“l(fā)uffing the boom”of a crane（）．
Pedestal cranes have limit switches to restrict movement of which function（s）（）.
What does “evel-luffing” accomplish during crane operations（）.
What is the purpose of the equalizing beam aboard a crane vessel（）.
How should you signal the crane operator to hoist（）.